Oilpan: move editing objects to the heap.

Source/core/editing/DeleteFromTextNodeCommand.cpp

 /*
  * Copyright (C) 2005, 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 51 matching lines @@
 void DeleteFromTextNodeCommand::doUnapply()
 {
     ASSERT(m_node);
 
     if (!m_node->rendererIsEditable())
         return;
 
     m_node->insertData(m_offset, m_text, IGNORE_EXCEPTION, CharacterData::DeprecatedRecalcStyleImmediatlelyForEditing);
 }
 
+void DeleteFromTextNodeCommand::trace(Visitor* visitor)
+{
+    visitor->trace(m_node);
+    SimpleEditCommand::trace(visitor);
+}
+
 } // namespace WebCore